An emacs security update has been released for Debian GNU/Linux 11 to address a missing input sanitization in the ctags functionality of Emacs that may result in the execution of arbitrary shell commands.

DSA 5314-1: emacs security update

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Debian Security Advisory DSA-5314-1 security@debian.org
  https://www.debian.org/security/ Moritz Muehlenhoff
January 11, 2023   https://www.debian.org/security/faq
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Package : emacs
CVE ID : CVE-2022-45939
Debian Bug : 1025009

It was discovered that missing input sanitising in the ctags functionality
of Emacs may result in the execution of arbitrary shell commands.

For the stable distribution (bullseye), this problem has been fixed in
version 1:27.1+1-3.1+deb11u1.

We recommend that you upgrade your emacs packages.

For the detailed security status of emacs please refer to
its security tracker page at:
  https://security-tracker.debian.org/tracker/emacs

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at:   https://www.debian.org/security/